*SUPPORT*
IN: dax OUT: BLUE
IN: zup OUT: RED
IN: dax dax OUT: BLUE BLUE
IN: lug kiki dax OUT: BLUE BLUE YELLOW YELLOW
IN: zup tufa blicket zup tufa OUT: RED GREEN RED GREEN
IN: lug lug OUT: YELLOW YELLOW
IN: dax dax kiki zup OUT: RED RED BLUE BLUE BLUE BLUE
IN: zup kiki zup gazzer tufa OUT: GREEN RED RED RED RED
IN: tufa dax kiki tufa OUT: GREEN GREEN GREEN BLUE GREEN BLUE
IN: lug tufa gazzer dax dax kiki tufa OUT: GREEN GREEN BLUE BLUE BLUE BLUE YELLOW GREEN
IN: dax tufa OUT: BLUE GREEN
IN: dax blicket zup OUT: BLUE RED
IN: zup blicket zup blicket dax zup OUT: RED RED BLUE RED
IN: zup kiki dax OUT: BLUE BLUE RED RED

*QUERY*
IN: tufa OUT: GREEN
IN: lug kiki zup OUT: RED RED YELLOW YELLOW
IN: tufa zup OUT: GREEN RED
IN: zup blicket dax tufa gazzer zup OUT: RED RED BLUE GREEN
IN: zup dax OUT: RED BLUE
IN: lug kiki zup blicket lug tufa OUT: RED RED YELLOW YELLOW YELLOW GREEN
IN: zup kiki lug OUT: YELLOW YELLOW RED RED
IN: lug blicket tufa OUT: YELLOW GREEN
IN: lug OUT: YELLOW
IN: dax kiki lug OUT: YELLOW YELLOW BLUE BLUE

*GRAMMAR*
dax -> BLUE 
 tufa -> GREEN 
 zup -> RED 
 lug -> YELLOW 
 x1 gazzer x2 -> [x2] [x1] 
 x1 blicket x2 -> [x1] [x2] 
 x1 kiki u1 -> [u1] [u1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 